Elastic material



Feb. 14, 1928.

W. H. FROST ELASTIC MATERIAL Fil ed Nov. 18, 1925 Patented Feb. 14, 1928.

UNITED 'sra'rss a n. rnosr, or LONG BEACH, caniron iia assienon T0 BEDEATZON or CALIFORNIA.

WARRE PANY, OF LOS ANGELES,.CALI

Application filed November FOENIA, A CO ELASTIC MATERIAL.

which may be mad measurement, and an 0 in general, is to provide rubber strands.

It is a matter of common knowledge that rubber i loses its An object of this an elastic material s a perishable e and bject or the invention,

sold by linear a construction that and that will be a suitaabric elastic employing product, and soon elasticity and that it stretches out and disintegrates, thus rendering useless the fabric in which it is woven.

invention is to produce in the form of a strip that Willpossess the elasticity of rubber at .its best while providing permanency of elasticity tension. resides i but, in o substitute to structural features no and unvariability in the elastic Fundamentally, the inventive idea 11 the emp ties arising from th in place of rubber, in long strips, I ble material, sue

the coil lVhile to catch the springs are in g such the springs as the coils of said portions,

struction To avoid the diiiiciil I fasten strip of cloth or other terial and said strip form of the springs, thus extending series expansion of the' s pull comes upon the sp points o provide 11 as cloth or loyineut of small coil rubber strands. coil springs is not new The be an effective ome ot the diiiicule use of coil springs, for elastic material made a covering of flexileather, ior

springs to protect them and also limit their extension.

it is not new to there is a extreme extens of the elastici employ a covering serious tault in the loying coil springs with for, when the springs are of fine wire, as s deused in multiple they are liable the cloth while ion of portions ot to give a permanent set to resulting in deot' such portions.

ty just mentioned,

each coil spring at intervals to a cas a sheath or f attachment 0 suitable flexible niapreierably in the mg which encloses forming a longitudinally of elastic sections. hen prings takes place, the ring section at the i said sections to 1925. Serial No. 69,804.

the strip, thus causing a STEELLASTIG COM- uniform expansion ot the several spring sections throughout the length-cit the spring,

section can be extended or strip lying between iiection of said spring section This construction is and no spring beyond the length the points of conwith the strip.

especially valuable where the elastic material is to be einployed for circular garters,

any articles where ta considerable elastic material ls required.

belts, suspenders, or in length of The accompanying drawings illustrate the invention.

.5 1 1s a broken longitudinal View of a strip of elastic material constructed in accordance with the provisions of this invention, a portion of the casing or sheath for the. springs being broken away.

Fig. 2 is an enlarged cross section on the line indicatedby 2--2, Fig. 1.

fragmental View to fastening the coil fi'aginental it fastening the coil lihei'e are provided a number of relatively long coil springs 4:.

made ct any length that nianutactiii'e them. The at intervals to a strip These springs may be it is practicable to springs are secured of fabric or other suitable flexible material 5 by any suitable means, such means, thread (3. 'llhe material iiess to form a tubular in this instance,

being 5 is of double thicksheath or casing so asto lie on opposite sides of the springs and,

preferably, the threads 6 thicknesses of the material. lies within a separatepochet pockets are separated from one another by double rows of stitching pass through both Each spring a and the several 7 and the material is tulled so as to produce transversely extending shirrs or gathers 8; The shirrs 8 ngs and prevent the lie between adjacent spi'i a relatively narrow springs from drawing together band only 'a single row of stitching were employed between adjacent springs.

The material 5 will be and the distance be springs are contracted sidewise into as would result if full when the tween the adjacent threads 6 on each spring is such that, when the m atei-ial between said threads is fully extended, the section of spring lying between sai d threads cannot be extended or stretched sufiiciently to give a permanent set to the coils of said section.

The elastic material described above Will be sold in long strips and the clerk or the purchaser can cut oft the amount desired for making a circle garter or other article employing an elastic element. i

For securing the spring to the sheath the coils of the spring may be opened out at intervals, as indicated in Fig. 3, and the threads 6 will engage the opened coils; or the coils at intervals may be bent at right angles with theremainder of the coils, as indicated in Fig. 1-, and the threads will engage the loops thus made.

To still further insure against the springs drawing together and unduly narrowing the strip of elastic material, especially when the flexible material 5 is a relatively soft, fine fabric, such for example as silk, I may employ a filler strip 9 between each two adjacent springs to stiffen the material 5 transversely. The filler strips 9 may be held in place,if desired, by passing either or both of the rows of stitching 7 through the filler strips. The filler strips may be made of a single thickness of relatively heavy material such, for example, as canvas, or said strips may be made of several thicknesses of a thinner material such as the material of which the strip 5 is made.

claim:

1. An elastic material comprising a strip of flexible material of double thickness, a plurality of coil springs attached at their ends and at inter 'als intermediate of their ends to and enclosed in the material, and stitching between adjacent springs, said material forming shirrs in the spaces between adjacent springs when the springs are cont acted.

2. An elastic material comprising a strip of flexible material forming a tubular casing, said casing having tubular pockets separated from one another by double rows oi. stitching, a coil spring in each pocket, and means attaching the springs at their ends and at intervals intermediate of their ends to the cas-- ing, the casing being full when the springs are contracted and thedistauce between adjacent points of attachment being such that the section of spring lying between such points of attachment cannot be stretched suliiciently to give. a permanent set to the coils of said section.

3. An elastic material comprising a strip of flexible material, and a coil spring secured at its ends and at intervals intermediate of its ends to said strip, said material being full between the points of attachment of the spring when the spring is contracted.

4. An elastic material comprising a strip of flexible materialof double thickness, and a coil spring attached at its ends and at intervals intermediate of its ends to the strip and enclosed thereby, said material being full between the points of attachment of the spring when the spring is contracted,

An elastic material comprising a strip 01" flexible material, and a. plurality of coil springs secured at their ends andat intervals intermediate of their ends to said strip, there being a row of stitching between each two adjacent springs and the material being full between points of attachment of the springs when the springs are contracted.

6. An elastic material comprising astrip of flexible material, and a ilurality of coil springs seem-ed at their ends and at intervals intermediate o'l their ends to said strip, there being a. double row of stitching between each two adjacent springs and the material being fall between the points of attachment oi the springs when the springs are contracted.

7. An elastic material coi'nprisiug a strip oi" flexible material, a plurality of coil springs extending along and secured tothe strip, and a filler strip between adjacent springs secured to the first strip.

8. An elastic material comprising a casing of flexible material, a plurality [of coil springs enclosed in the casing, and a filler strip between adjacent springs.

9. An elastic material comprising a casing of flexible material, a plurality of coil springs enclosed in the casing, and a filler strip between adjacent springs, said filler strip being secured to the 'asing" 10. An elastic material con'ipr' g of flexible material, a plurality of coil springs secured at their end. and at intervals intermediate of their ends to said material, and a filler strip between adjacent springs, said tiller strip being secured to the first strip.

11. An elastic material comprising a casing of flexible material, a plurality of coil springs enclosed in the casing and secured at their ends and at intervals intermediate of their ends thereto, and a filler strip between adjacent springs.

12. An elastic material crm'iprising :1 casiug of flexible material. a. pli'iralitj' of coil springs enclosed in the casing and eximidiug side by side lengthwise of the casing, and a plurality of rows of stitching connecting the opposite walls of the casing between each two adjacent springs and extending from end to end of the springs.

13, An elastic n'iaterial comprising a casing of flexible material, a plurality oi? coil springs enclosed in the casing and secured at their ends and at intervals intermediate of their ends thereto, and a plurality of rows of stitching connecting the opj'iosite walls oi the casing between each two adjacent springs.

Signed at Los Angeles, Calitl, this 2F$il| day oi" rrugust, 1925.

lVARRENH. FROST.

c a strip 

